Interchangeable blade knife



FIG. 1 is a perspective view of a blade unit for the interchangeable blade knife;

FIG. 2 is a front view of the blade unit for the interchangeable blade knife;

FIG. 3 is a top view of the blade unit for the interchangeable blade knife;

FIG. 4 is a rear view of the blade unit for the interchangeable blade knife;

FIG. 5 is a bottom view of the blade unit for the interchangeable blade knife;

FIG. 6 is a right side view of the blade unit for the interchangeable blade knife; and,

FIG. 7 is a left side view of the blade unit for the interchangeable blade knife.

The broken line showing of a knife blade is included for the purpose of illustrating environment only and forms no part of the claimed design. 

CLAIM The ornamental design for an interchangeable blade knife, as shown and described. 